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【单选题】
N型半导体中多数载流子是(),少数载流子是();P型半导体中多数载流子是(),少数载流子是()。
A.
自由电子,空穴;空穴,自由电子
B.
空穴,自由电子,空穴,自由电子
C.
自由电子,空穴,自由电子,空穴
D.
空穴,自由电子,自由电子,空穴
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【单选题】— I am shocked at the news that many pupils were killed in the terrible traffic accident. — So am I. Little the safety of the poor children. [     ]
A.
did the local government care for
B.
the local government cared for
C.
did the local government care about
D.
the local government cared about
【单选题】劳动纪律属于( )
A.
奖励制度
B.
惩罚制度
C.
劳动纪律与奖惩
D.
保障制度
【单选题】—I am shocked at the news that many pupils were killed in the terrible traffic accident. —So am I. Little the safety of the poor children.
A.
did the local government care for
B.
the local government cared for
C.
did the local government care about
【单选题】咽部的淋巴组织丰富,较大的淋巴组织团块呈环状排列,称咽淋巴环。下列哪些组织构成咽淋巴内环:
A.
咽扁桃体(又名腺样体或增殖体,位于鼻咽顶部)
B.
腭扁桃体(位于口咽部,左右成对,是体积最大的扁桃体)
C.
咽鼓管扁桃体(位于咽鼓管咽口附近)
D.
咽侧索(位于腭咽弓后方,纵行条状)
E.
咽后壁淋巴滤泡(位于咽后壁)
F.
舌扁桃体(位于舌根部)
G.
以上都是
【简答题】试述咽淋巴环的组成及其意义。
【简答题】I am shocked at the sight of agers smoking cigarettes. (jar) The sight of agers __________.
【单选题】订立劳动合同、规范劳动纪律属于工程建设的()关系
A.
工程建设管理关系
B.
工程建设协作关系
C.
主体内部劳动关系
【简答题】February 28 th , 2009 2:54 am GMT I have to say that am shocked at just how bad the new music is. This cannot be the same band that produced great albums such as HTDAAB and ATYCLB! This is awful! They...
【单选题】以下不属于咽淋巴环组成的是
A.
咽扁桃体
B.
咽鼓管扁桃体
C.
腭扁桃体
D.
扁桃体
E.
舌扁桃体
【单选题】--- I am shocked at the news that many pupils were killed in the terrible traffic accident. --- So am I. Little ____ the safety of the poor children.
A.
cared the local government about
B.
the local government cared about
C.
did the local government care about
D.
was the local government cared about
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